/* 账号 */

.long-top {
    width: 80%;
    height: 6rem;
    margin: 1rem 0;
}


/* 密码 */

.long-bottom {
    width: 80%;
    height: 6rem;
}


/* 登录 */

.long-button {
    width: 80%;
    height: 2rem;
    margin-top: 1rem;
    background-color: blue;
    color: #fff;
    border: none;
}


/* 输入框 */

input {
    width: 100%;
    height: 2rem;
    border: none;
    border: 1px solid #ccc;
    outline: none;
    margin: 1rem 0;
}


/* 主体页面 */

.long {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    /* margin-top: 10%; */
}


/* 字体 */

.err {
    /* margin-bottom: 1rem; */
    width: 80%;
    height: 1rem;
}

.long span {
    color: red;
    font-size: 14px;
    display: none;
}